{"product_id":"hks-radiator-cap-s-type","title":"HKS RADIATOR CAP S-Type","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e15009-AK006\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 4957266655627\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eHKS RADIATOR CAP S-Type for 2002-2021 Subaru WRX STI Nissan 350Z 370Z Honda S2000\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe HKS Radiator Cap S-Type delivers 1.3 kgf\/cm² pressure to maintain coolant flow and raise boiling point for reliable cooling under load. This direct replacement fits popular performance vehicles like Subaru Impreza WRX STI Nissan 350Z 370Z and Honda S2000. It prevents overflow and supports higher boost levels in tuned engines.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.3 kgf\/cm² Pressure:\u003c\/strong\u003e Higher than stock 1.1 kgf\/cm² rating keeps coolant under pressure to boost boiling point by up to 10°C and reduce air intrusion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnodized Aluminum Body:\u003c\/strong\u003e Corrosion-resistant finish with 36mm outer diameter and 42mm height ensures long-term durability in harsh conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluoro Rubber Seal:\u003c\/strong\u003e High-temperature resistant gasket provides airtight seal against leaks and pressure loss over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless Steel Spring:\u003c\/strong\u003e Precise tension maintains consistent performance during repeated heat cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Design:\u003c\/strong\u003e Only 64 grams for minimal impact while offering full OEM compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInspect seal annually and replace every 2 years for peak performance\u003c\/li\u003e\n\u003cli\u003eUse with standard ethylene glycol or HKS coolants for best results\u003c\/li\u003e\n\u003cli\u003ePackaged in protective box to prevent damage during transit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eDrain cooling system completely before removal to avoid spills\u003c\/li\u003e\n\u003cli\u003eHand tighten plus quarter turn no additional tools or hardware needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2007\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza\u003c\/td\u003e\n\u003ctd\u003eSTI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2008\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e350Z\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2020\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e370Z\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2009\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eS2000\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2007\u003c\/td\u003e\n\u003ctd\u003eInfiniti\u003c\/td\u003e\n\u003ctd\u003eG35\u003c\/td\u003e\n\u003ctd\u003eCoupe\/Sedan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2005\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer\u003c\/td\u003e\n\u003ctd\u003eEvolution VIII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2015\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer\u003c\/td\u003e\n\u003ctd\u003eEvolution IX\/X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose HKS?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEstablished 1973 leader in JDM tuning with motorsport pedigree\u003c\/li\u003e\n\u003cli\u003eEngineered and tested for high-performance street and track use\u003c\/li\u003e\n\u003cli\u003eConsistent quality trusted by professional racers and enthusiasts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does this fit 2006 Subaru STI?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes direct replacement for 2004-2021 STI models with standard radiator neck\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What seal material is used?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Fluoro rubber resists heat up to 200°C and coolant chemicals for reliable sealing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e How hard is installation?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Bolt-on process takes 10 minutes after draining coolant no special tools required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground \/ USPS Priority Mail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Protective cardboard box 4 x 3 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.14 lbs product \/ 0.4 lbs shipping\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":40271611658319,"sku":"HKS15009-AK006","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/hks-radiator-cap-s-type-hks.jpg?v=1768434825","url":"https:\/\/www.blackopsautoworks.com\/products\/hks-radiator-cap-s-type","provider":"Black Ops Auto Works","version":"1.0","type":"link"}